If you now try to delete these disks and come again into this status then consider doing the following.

!!! Make sure just the disks from this stack are remaining. !!!

Scenario: Disks are stored on a storage system via NFS protocol.

Log on to your controller Node and figure out your mountpoint by issuing mount

On my system it is: /var/lib/cinder/mnt/a652d6730031a8fooooo0b84fb31a898

List your disks and you will get a list with the corresponding Disk ID in its name.

Now delete them !

Now we can delete the entries from the database:

First take a look at the values: mysql -e "select * from cinder.volumes where id='4abd0cc4-2c39-fooo-93c3-01f8bad02498'\G;"

Then issue the command and replace the id property with the id from your disk like done before: mysql -u root -e "update cinder.volumes set deleted='1',status='deleted',attach_status='detached',deleted_at=now(),provider_location=NULL,volume_type_id=NULL where id='4abd0cc4-2c39-fooo-93c3-01f8bad02498'";